Time capsule losing internet connectivity (only with some clients)
I recently upgraded my old 802.11g base station to a new Time Capsule 802.11ac. Quite frequently (2-3x daily) I lose connection to the internet. The light on the Time Capsule is still green, but I have no connection to the internet from any of my devices (2 iPhone 4s, MacBook Air, and MacBook). Airport Utility does show that I'm disconnected from the internet. I can restore connectivity either by restarting the 2100 Cisco Cable modem or restarting the Time Capsule. So it seems the communication between them is getting messed up somehow.
The thing that's confusing about this is that I also have two Roku 2 units in the house connected to the same network and I can still connect to the internet with either of these devices even though all the Apple devices cannot. Has anyone else seen anything like this? Suggestions?
MacBook Air, OS X Mountain Lion (10.8.5)